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https://github.com/NLnetLabs/unbound.git
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140a165ab2
- Limit ECS scope returned to client to the scope used for caching. - Make lint like previous #4154 fix. git-svn-id: file:///svn/unbound/trunk@4946 be551aaa-1e26-0410-a405-d3ace91eadb9
298 lines
6.6 KiB
Plaintext
298 lines
6.6 KiB
Plaintext
; When the triggering query includes ECS option, source prefix-length should
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; be set to the shorter of the incoming query or server maximum cacheable prefix
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; length
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server:
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val-override-date: "20070916134226"
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target-fetch-policy: "0 0 0 0 0"
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send-client-subnet: 1.2.3.4
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max-client-subnet-ipv4: 17
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module-config: "subnetcache validator iterator"
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verbosity: 3
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qname-minimisation: "no"
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minimal-responses: no
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stub-zone:
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name: "."
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stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET.
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CONFIG_END
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SCENARIO_BEGIN Test shortest source prefix-length
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; K.ROOT-SERVERS.NET.
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RANGE_BEGIN 0 100
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ADDRESS 193.0.14.129
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ENTRY_BEGIN
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MATCH opcode qtype qname ednsdata
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ADJUST copy_id
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REPLY QR NOERROR
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SECTION QUESTION
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. IN NS
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SECTION ANSWER
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. IN NS K.ROOT-SERVERS.NET.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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;; we expect to receive empty
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HEX_EDNSDATA_END
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K.ROOT-SERVERS.NET. IN A 193.0.14.129
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ENTRY_END
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ENTRY_BEGIN
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MATCH opcode qtype qname
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ADJUST copy_id
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REPLY QR NOERROR
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SECTION QUESTION
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www.example.com. IN A
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SECTION AUTHORITY
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com. IN NS a.gtld-servers.net.
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SECTION ADDITIONAL
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a.gtld-servers.net. IN A 192.5.6.30
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ENTRY_END
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RANGE_END
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; a.gtld-servers.net.
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RANGE_BEGIN 0 100
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ADDRESS 192.5.6.30
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ENTRY_BEGIN
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MATCH opcode qtype qname ednsdata
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ADJUST copy_id
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REPLY QR NOERROR
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SECTION QUESTION
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com. IN NS
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SECTION ANSWER
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com. IN NS a.gtld-servers.net.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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;; we expect to receive empty
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HEX_EDNSDATA_END
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a.gtld-servers.net. IN A 192.5.6.30
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ENTRY_END
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ENTRY_BEGIN
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MATCH opcode qtype qname
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ADJUST copy_id
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REPLY QR NOERROR
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SECTION QUESTION
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www.example.com. IN A
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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RANGE_END
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; ns.example.com.
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RANGE_BEGIN 0 100
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ADDRESS 1.2.3.4
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ENTRY_BEGIN
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MATCH opcode qtype qname ednsdata
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ADJUST copy_id copy_ednsdata_assume_clientsubnet
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REPLY QR NOERROR
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SECTION QUESTION
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example.com. IN NS
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SECTION ANSWER
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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;; we expect to receive empty
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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; response to query of interest
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ENTRY_BEGIN
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MATCH opcode qtype qname ednsdata
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ADJUST copy_id copy_ednsdata_assume_clientsubnet
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REPLY QR NOERROR
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SECTION QUESTION
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www.example.com. IN A
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SECTION ANSWER
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www.example.com. IN A 10.20.30.40
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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; client is 127.0.0.1
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00 08 ; OPC
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00 06 ; option length
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00 01 ; Family
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10 00 ; source mask, scopemask
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7f 00 ; address
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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; client send /18, we expect /17
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ENTRY_BEGIN
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MATCH opcode qtype qname ednsdata
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ADJUST copy_id copy_ednsdata_assume_clientsubnet
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REPLY QR NOERROR
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SECTION QUESTION
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www.example.com. IN A
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SECTION ANSWER
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www.example.com. IN A 10.20.30.50
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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; client is 127.1.0.1
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00 08 ; OPC
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00 07 ; option length
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00 01 ; Family
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11 00 ; source mask, scopemask
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7f 01 00 ; address
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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; client send /17, we return /18
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ENTRY_BEGIN
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MATCH opcode qtype qname ednsdata
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ADJUST copy_id copy_ednsdata_assume_clientsubnet increment_ecs_scope
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REPLY QR NOERROR
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SECTION QUESTION
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www.example.com. IN TXT
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SECTION ANSWER
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www.example.com. IN TXT "longer scope"
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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; client is 127.1.0.1
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00 08 ; OPC
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00 07 ; option length
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00 01 ; Family
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11 00 ; source mask, scopemask
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7f 01 00 ; address
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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RANGE_END
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STEP 1 QUERY
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ENTRY_BEGIN
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HEX_ANSWER_BEGIN;
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00 00 01 00 00 01 00 00 ;ID 0
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00 00 00 01 03 77 77 77 ; www.example.com A? (DO)
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07 65 78 61 6d 70 6c 65
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03 63 6f 6d 00 00 01 00
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01 00 00 29 10 00 00 00
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80 00 00 0a
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00 08 00 06 ; OPC, optlen
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00 01 10 00 ; ip4, scope 16, source 0
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7f 00 ;127.0.0.0/16
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HEX_ANSWER_END
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ENTRY_END
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; recursion happens here.
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STEP 10 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all ednsdata
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REPLY QR RD RA NOERROR
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SECTION QUESTION
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www.example.com. IN A
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SECTION ANSWER
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www.example.com. IN A 10.20.30.40
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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; client is 127.0.0.1
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00 08 ; OPC
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00 06 ; option length
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00 01 ; Family
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10 10 ; source mask, scopemask
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7f 00 ; address
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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STEP 11 QUERY
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ENTRY_BEGIN
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HEX_ANSWER_BEGIN;
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00 00 01 00 00 01 00 00 ;ID 0
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00 00 00 01 03 77 77 77 ; www.example.com A? (DO)
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07 65 78 61 6d 70 6c 65
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03 63 6f 6d 00 00 01 00
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01 00 00 29 10 00 00 00
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80 00 00 0b
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00 08 00 07 ; OPC, optlen
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00 01 12 00 ; ip4, scope 18, source 0
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7f 01 00 ;127.1.0.0/18
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HEX_ANSWER_END
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ENTRY_END
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; recursion happens here.
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STEP 20 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all ednsdata
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REPLY QR RD RA NOERROR
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SECTION QUESTION
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www.example.com. IN A
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SECTION ANSWER
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www.example.com. IN A 10.20.30.50
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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; client is 127.1.0.1
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00 08 ; OPC
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00 07 ; option length
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00 01 ; Family
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12 11 ; source mask, scopemask
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7f 01 00 ; address
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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STEP 21 QUERY
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ENTRY_BEGIN
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HEX_ANSWER_BEGIN;
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00 00 01 00 00 01 00 00 ;ID 0
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00 00 00 01 03 77 77 77 ; www.example.com TXT? (DO)
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07 65 78 61 6d 70 6c 65
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03 63 6f 6d 00 00 10 00
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01 00 00 29 10 00 00 00
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80 00 00 0b
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00 08 00 07 ; OPC, optlen
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00 01 11 00 ; ip4, scope 17, source 0
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7f 01 00 ;127.1.0.0/17
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HEX_ANSWER_END
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ENTRY_END
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; server returns /18, since we cache the result to max-client-subnet-ipv4 (/17),
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; the initial answer returned to the client should also be capped to /17.
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STEP 30 CHECK_ANSWER
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ENTRY_BEGIN
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MATCH all ednsdata
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REPLY QR RD RA NOERROR
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SECTION QUESTION
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www.example.com. IN TXT
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SECTION ANSWER
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www.example.com. IN TXT "longer scope"
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SECTION AUTHORITY
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example.com. IN NS ns.example.com.
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SECTION ADDITIONAL
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HEX_EDNSDATA_BEGIN
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; client is 127.1.0.1
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00 08 ; OPC
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00 07 ; option length
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00 01 ; Family
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11 11 ; source mask, scopemask
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7f 01 00 ; address
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HEX_EDNSDATA_END
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ns.example.com. IN A 1.2.3.4
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ENTRY_END
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SCENARIO_END
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